Adding an Allowed SIO Screen
This procedure is used to add an allowed signaling
information octet (SIO) screen to the database using the
ent-scr-sio command. The parameters
used by the
ent-scr-sio command are shown in the
Gateway Screening Attributes
section. The general rules that apply to configuring gateway screening entities
are shown in the
Gateway Screening Configuration
section.
The examples in this procedure are used to add the allowed SIO screen data shown in Table 10-2 and based on the example configurations shown in Figure 2-4, Figure 2-6, Figure 2-7, Figure 2-8, and Figure 2-9.
Table 10-2 Example Gateway Screening Allowed SIO Configuration Table
| Screening Reference | NIC | SI | H0 | H1 | PRI | NSFI | NSR |
|---|---|---|---|---|---|---|---|
| fld4 | 2 | 0 | 4 | 5 | 3 | destfld | fld5 |
| iec | 2 | 3 | -- | -- | 1&&3 | cgpa | gw11 |
| ls02 | 2 | 3 | -- | -- | 3 | cdpa | ls03 |
| isp1 | 2 | 5 | -- | -- | 3 | isup | isp1 |
| tup1 | 2 | 4 | -- | -- | 3 | dpc | tup1 |
| tup1 | 2 | 5 | -- | -- | 3 | dpc | isp2 |
The allowed SIO screen can reference one of the following screens.
- Allowed DPC
- Blocked DPC
- Allowed Affected Destination Field
- Allowed ISUP Message Type
- Allowed CGPA
- Allowed CDPA
Verifying the Gateway Screening Configuration
Enter the following commands to verify that these screens are in the database.
rtrv-scr-dpc:all=yesrtrv-scr-blkdpc:all=yesrtrv-scr-destfld:all=yesrtrv-scr-isup:all=yesrtrv-scr-cgpa:all=yesrtrv-scr-cdpa:all=yes
Gateway Screening Configuration Procedures
If the desired screen is not in the database, perform one of these procedures to add the desired screen to the database or change an existing screen in the database.
- Adding an Allowed DPC Screen
- Adding a Blocked DPC Screen
- Adding an Allowed Affected Destination Field Screen
- Adding an Allowed ISUP Message Type Screen
- Adding an Allowed Calling Party Address Screen
- Adding an Allowed Called Party Address Screen
- Changing an Allowed DPC Screen
- Changing a Blocked DPC Screen
- Changing an Allowed Affected Destination Field Screen
- Changing an Allowed ISUP Message Type Screen
- Changing an Allowed Calling Party Address Screen
- Changing an Allowed Called Party Address Screen
Specifying a Range of Values
A range of values can be specified for the
pri,
h0, and
h1 parameters. If a range of values is
specified for any of these parameters and the
nic and
si values in the screening reference
name are not changed, the range of values for the
pri,
h0, or
h1 parameters cannot include any
values that are currently provisioned for the screening reference name.
For example, screening reference name
scr1 contains these entries:
SR NIC PRI SI H0 H1 NSFI NSR/ACT
SCR1 2 3 1 4 5 DPC LS03
SCR1 2 2 1 2 7 BLKDPC LS04Another entry for screening reference
scr1 with the same
nic and
si values cannot be specified if:
- The range of values for the
priparameter includes the values 2 or 3 - The range of values for the
h0parameter includes the values 2 or 4 - The range of values for the
h1parameter includes the values 5 or 7.
Specifying H0 and H1 Values
The
h0 and
h1 values must be specified if the
si value is 0, 1, or 2. If the
si value is 3 through 15, the
h0 and
h1 parameters cannot be specified.
The
h0 and
h1 parameters must be specified if
either parameter is specified.
The H0 and H1 heading code values can be a single value,
a range of values with the beginning and end of the range separated by double
ampersands (for example, a range of values from 2 to 9, 2&&9), or with
an asterisk (*). The asterisk specifies all possible values for the
h0 and
h1 parameters.
Table 10-3
shows the valid combinations of these parameter values.
Table 10-3 Valid Value Combinations for H0 and H1 Parameters
| H0 | H1 |
|---|---|
| Single Value | Single Value |
| Single Value | Range of Values |
| Single Value | Asterisk |
| Range of Values | Asterisk |
| Asterisk | Asterisk |
Figure 10-5 Add an Allowed SIO Screen - Sheet 1 of 3
Figure 10-6 Add an Allowed SIO Screen - Sheet 2 of 3
Figure 10-7 Add an Allowed SIO Screen - Sheet 3 of 3